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Publié par | ruprecht-karls-universitat_heidelberg |
Publié le | 01 janvier 2009 |
Nombre de lectures | 31 |
Langue | English |
Poids de l'ouvrage | 1 Mo |
Extrait
PSYCHOLOGISCHES INSTITUT DER UNIVERSITÄT HEIDELBERG
“OUT OF SIGHT – OUT OF MIND?”
OBJECT REPRESENTATION IN EARLY CHILDHOOD WITH FOCUS ON THE
ABILITY TO INDIVIDUATE MOVING OBJECTS
Dissertation zur Erlangung des Grades eines Dr. phil.
der Fakultät für Verhaltens- und Empirische Kulturwissenschaften
der Ruprecht-Karls-Universität Heidelberg
vorgelegt von
LYSETT BABOCSAI
NOVEMBER 2008
REVIEWERS: Prof. Dr. Sabina Pauen
Psychologisches Institut der Universität Heidelberg
Prof. Dr. Joachim Funke
Psychologisches Institut der Universität Heidelberg
THIS WORK IS DEDICATED TO MY PARENTS CATERINA UND UWE BABOCSAI
We shall not cease from exploration.
And the end of all our exploring
Will be to arrive where we started
And know the place for the first time.
T.S. Eliot
ACKNOWLEDGMENTS
Many thanks to everyone who supported me in this dissertation project.
I am especially grateful to my friends and family who helped me to stay
focused and encouraged me while I wrote this thesis. Thank you, Ralph Kohn,
Susanna Jeschonek, Sonja Puderwinski, Kirsten Bolm, Romy Henze, Sebastien
Pelletier, Costas Xanthopoulos, Alex Hoeft, and Mariah Schug for your friendship,
giving me strength, and accompanying me on this journey. I want to thank Gus Leotta
as well as my parents, brother, and grandparents for their love, ongoing support,
believe in me, as well as their interest in my work.
Additionally, I want to thank my advisor Prof. Dr. Sabina Pauen for the
provision of resources making this work possible, her support, and comments on an
earlier draft of this thesis. Thanks to Prof. Dr. Joachim Funke for agreeing to review
this dissertation.
Further, many thanks to my colleagues Dr. Birgit Träuble, Dipl.-Psych.
Susanna Jeschonek, and Dipl.-Psych. Sonja Puderwinski, our secretary Christiane
Fauth, as well as the research assistants who were involved in these studies from the
research team of the infant lab at the University of Heidelberg. Thank you, Dr. Birgit
Träuble for your interest, motivation, assistance as well as our discussions regarding
this dissertation. Thank you, Dipl.-Psych. Susanna Jeschonek and Dipl.-Psych. Sonja
Puderwinski for all your help in the lab as well as your colleagueship. Thank you,
Christiane Fauth for recruitment and scheduling as well as always having a
sympathetic ear. I am very grateful to Kirsten Bolm, Vesna Miranovic, Alice Eger,
Ina Wegelin, Carolin Berude, and Susanne Falk for their help in running the
experiments and with coding.
I am indebted to the Dietmar-Hopp Foundation for their generous funding
without which this research would have not been possible. Lastly, I want to thank the
infants and parents who participated in the studies. Their enthusiasm and gift of time I
hope will further the field of developmental psychology and serve as a basis for future
investigations.
CONTENT
Abstract i
I Introduction 1
THE NATURE OF OBJECT REPRESENTATION 1
II Theoretical Background 7
CHAPTER 1 ASPECTS OF OBJECT REPRESENTATION IN INFANCY 7
1.1 Object Segregation 8
1.2 Object Permanence 10
1.3 Object Individuation 13
1.4 Object Identification 17
1.5 Sumary 18
CHAPTER 2 THEORETICAL APPROACHES TO THE INFANTS’ SYSTEM OF OBJECT
INDIVIDUATION 20
2.1 The Object-first Hypothesis 23
2.2 Event Categorization 29
2.3 Theory of Different Kinds of Information 36
2.4 The Indexing Model 39
2.5 The Identity Theory 44
2.6 The Human-first Hypothesis 47
2.7 Resolution of Disputes 49
2.8 Summary 56
CHAPTER 3 MOTION INFORMATION AS KIND INFORMATION 58
3.1 Motion Perception in Early Childhood 58
3.2 Contribution of Motion to the Animate – Inanimate Distinction 61
3.3 Form – Motion Association 68
3.4 Sumary 71
I Empircal Part 73
CHAPTER 4 RESEARCH QUESTION AND STUDY APPROACH 73
4.1 Objectives 73
4.2 Hypothesi76
4.3 Implementation of the Research Question 77
CHAPTER 5 METHODOLOGY AND PARADIGM 81
5.1 Subjects 81
5.2 General Study Design 82
5.3 Overview of the Stimuli 82
5.4 Experimental Setting and Technical Setup 83
5.5 General Procedure 85
CHAPTER 6 EXPERIMENT 1 – NATURAL MATERIAL 87
6.1 Study Concept 87
6.2 Participants 87
6.3 Stimuli 88
6.4 Procedure
6.5 Scoring 90
6.6 Data Analysis 90
6.7 Result 91
6.8 Discussion of Results 98
6.9 Summary 102
CHAPTER 7 EXPERIMENT 2 – ABSTRACT MATERIAL 104
7.1 Study Concept 104
7.2 Participants 105
7.3 Stimuli
7.4 Procedure 106
7.5 Scoring 107
7.6 Data Analysis 108
7.7 Results 109
7.8 Discussion of Results 115
7.9 Summary 118
CHAPTER 8 EXPERIMENT 3 – BASELINE CONTROL 119
8.1 Study Concept 119
8.2 Participants 120
8.3 Stimuli
8.4 Procedure 120
8.5 Scoring 121
8.6 Data Analysis
8.7 Results 122
8.8 Discussion of Results 124
8.9 Summary 125
CHAPTER 9 EXPERIMENT 4 – SPATIOTEMPORAL CONDITION 126
9.1 Study Concept 126
9.2 Participants
9.3 Stimuli 126
9.4 Procedure 127
9.5 Scoring 9.6 Data Analysis 128
9.7 Results
9.8 Discussion of Results 134
9.9 Summary 135
IV Interpretational Part 136
CHAPTER 10 GENERAL DISCUSSION
10.1 Discussion of the Results 137
10.2 Future Directions and Conclusions 145
References 150
Appendices 172 i
ABSTRACT
A consistent pattern of results indicates that from an early age humans are
competent to represent objects and characterize them in terms of their properties, their
behaviors, as well as their involvement in actions and events. Thereby, infants’ event
knowledge not only consists of static information regarding the structure and form of
objects but also includes dynamic components. The comprehension of the dynamic
aspects of an event is essential in making decisions about the number of objects
involved or in judging whether a particular object seen at one time is the same object
as one viewed at a previous time. This problem is referred to as object individuation.
The study of object individuation demonstrates that infants employ a variety of
sources of information in this process. Despite its great importance in early infants’
perceptual and cognitive abilities, one particular source of dynamic information has
been unexplored in the occurrence of object individuation. The present work is
concerned with the role domain-specific motion plays in infants’ understanding of
events and its impact on object individuation.
The following four experiments investigated 10- and 12-month-old infants’
ability to recall how many objects were involved in a motion event by means of
domain-specific motion cues (animate-inanimate) the objects provided. Using an
adapted version of the Xu and Carey (1996) paradigm, 10- and 12-month-old infants
saw an animate and an inanimate object repeatedly travel from behind a screen. It was
predicted that the distinct motion characteristics would facilitate object individuation
by activating underlying conceptual knowledg